Ailana Tsarnaev, of North Berger, New Jersey, was arrested at a police station in New York City Wednesday afternoon, charged with one count of aggravated harassment. She was released with a summons to return to a criminal court in Manhattan on Sept. 3, according to police Lt. John Grimpel.

Grimpel said the victim of Ailana Tsarnaev’s alleged threat has a child with the father of one of Tsarnaev’s children. Grimpel did not elaborate on the nature of the dispute.

It sounds like a case of jealousy here. In any case, she did a grave wrong and should face serious penalties for it.